★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
ChartMill vs Letters and Reviews
ChartMill
Best for screeners and stock comparison
Free • Paid plans available
Letters and Reviews
Best for stock ideas and institutional ownership
Free
Outbound links may include affiliate or sponsor codes.
The verdict
The bottom line
ChartMill and Letters and Reviews cover a lot of the same ground (3 shared categories, stock ideas, institutional ownership, and blogs), so for the basics you won't go far wrong with either. ChartMill simply does more: 24 categories to Letters and Reviews's 3, including screeners, stock comparison, and data visualizations. Letters and Reviews counters by being completely free.
Key differences at a glance
- Broader coverage
- ChartMill24 vs 3 categories
- Free plan
- Both
Choose
ChartMill if…
- You care about screeners, stock comparison, and data visualizations, things Letters and Reviews doesn't offer
- You trade often and need tooling built for speed
Choose
Letters and Reviews if…
- Letters and Reviews's overall approach simply feels right to you; they're close on paper
Comparison snapshot
| Attribute | | |
|---|---|---|
| Pricing & plans | ||
Starting price | Free • Paid plans available | Free |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | Free: financials history: 4 years/quarters (free users, example pages). | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +6 more | — |
Categories covered | 24 | 3 |
Regions | North America, Europe | North America, Europe, APAC |
| Data & capabilities | ||
Data quality | 3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD and Minute +1 more | — |
Capabilities | Custom formulas and Universe builder | — |
| Try it | Visit ChartMill | Visit Letters and Reviews |
Standout features
What ChartMill does best
- Free advanced stock screener with technical + fundamental filters (dividend, valuation, growth, profitability, health), ChartMill ratings, custom expressions, saved screens, and customizable result views (tables/charts).
- Trading Ideas library of 289 ready-to-use screen configurations spanning technical breakout/pullback setups, CANSLIM, Minervini, GARP, O’Shaughnessy Tiny Titans, dividend, value and growth strategies; each can be run and adapted.
- Charting with multi-chart layouts, multiple timeframes (including intraday), and save/load chart configurations; supports watchlist-based charting.
- Full-screen chart mode adds custom indicators (including fundamentals), event markers (earnings/dividends/splits), drawings/annotations, alerts, and a built-in position sizing tool.
- Stock pages aggregate technical & fundamental ratings/reports with financial statements, analyst ratings/price targets, earnings estimates, ownership/short interest, and news; Analyzer pages combine technical ratings, setup quality and fundamental reports for growth, valuation, health, profitability and dividend.
What Letters and Reviews does best
- Quarterly **Fund Manager Letters** pages with the fund name, date, and a "Stocks Mentioned" column (tickers link out for quick lookup); latest public quarter observed is Q4 2025.
- Quarterly **13-F pages** the author reads, with many entries including holdings tables and position-change flags (e.g., NEW / Sold Out / % of portfolio).
- Lightweight **About** page clarifies the goal: stock-idea discovery from letters; author shares links and invites tips via @_iinvested.
- A small **Podcasts** page curating investing/finance episodes the author plans to re-listen to.
Data & access details
| Attribute | | |
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksETFs |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailDay TradersSwing TradersLong-term InvestorsGrowth InvestorsValue InvestorsDividend Investors | Not specified |
Regions | North AmericaEurope | North AmericaEuropeAPAC |
Coverage details | 17 countries9 exchangesIdentifiers: Ticker and ISIN | Identifiers: Ticker |
| Data | ||
Data freshness | 15-min DelayedEnd of Day | Not specified |
Data granularity | EODMinute | Not specified |
| Access & integrations | ||
Export formats | CSV | Not specified |
| Plans & trust | ||
Capability signals | Custom formulasUniverse builder | Not specified |
Vendor & support | ChartMill | Letters and Reviews (Blogger)Support: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 3/5UX 3/5 |
Green tags are exclusive to that tool in this comparison.
Pricing breakdown
Free
Starting price
Plans & pricing
- financials history: 4 years/quarters (free users, example pages).
Free
Starting price
Plans & pricing
Coverage overlap
Shared categories
3Where the two tools cover the same ground.
ChartMill strengths
21Letters and Reviews strengths
0What you only get with Letters and Reviews.
No unique categories.
Community category leaders
Vote sentiment comparison
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Frequently Asked Questions
What's the difference between ChartMill and Letters and Reviews?
ChartMill leans toward screeners, stock ideas, and stock comparison, while Letters and Reviews puts more weight on stock ideas, institutional ownership, and blogs. They overlap in 3 categories, so for most people it comes down to workflow preference and price.
How much do ChartMill and Letters and Reviews cost?
Good news: both ChartMill and Letters and Reviews have free plans, so you can run them side by side and only pay if you hit a wall.
Should I choose ChartMill or Letters and Reviews?
It depends on what you're after. Pick ChartMill if screeners and stock comparison matter to you; go with Letters and Reviews if you prefer its overall approach. And if you only need the basics both share, let price decide.
Can I export data from ChartMill and Letters and Reviews?
ChartMill exports to CSV. Letters and Reviews is stingier about getting data out.
Is ChartMill or Letters and Reviews better for day trading?
ChartMill is the one positioned more for active traders. Letters and Reviews is the better fit if you care less about fast trading workflows and more about a calmer research process.
Which has a better stock screener: ChartMill or Letters and Reviews?
ChartMill has a stock screener for surfacing ideas; Letters and Reviews doesn't, and focuses its energy elsewhere.
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.